174 Field Museum of Natural History — Zoology, Vol. IX. 



Crown, dull olive gray; throat, olive gray; belly, rufous brown; 

 tail, black. Sayornis saya. 



Say's Phoebe Flycatcher. 



See No. 208. 



Upper plumage, brownish olive, or dull, grayish olive; throat and 

 middle of belly, white, sometimes tinged with pale yellow; breast 

 (except middle) and sides of body, dull grayish olive; under mandible, 

 pale. Nuttallornis borealis. 



Olive-sided Flycatcher. 

 See No. 209. 



Crown and back, ashy; throat and breast, ashy white; sides of 

 breast and body, orange red; tail, forked, very long, rarely less than 

 four and one half inches. Muscivora forficata. 



Scissor-tailed Flycatcher. 



See No. 203. 



GROUP 7. Wing, 4.75 to 5.50 inches long. 



Top of bill. 



Back, blackish ; a concealed patch of fiery red on the crown ; tail, 

 black, tipped with white ; belly, white. Tyrannus tyrannus. 



Kingbird. 



See No. 204. 



Back, olive gray; a concealed orange patch on the crown; throat, 

 gray; belly, yellow; outer web of outer tail feather, white; a western 

 species which has occasionally been taken east of the Mississippi. 



Tyrannus verticalis. 

 Arkansas Kingbird. 

 See No. 205. 



